package com.lbc.tcp;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;

//  服务端接收文件
public class TcpServerDemo02 {
    public static void main(String[] args) throws Exception {
        //  1.创建服务
        ServerSocket serverSocket = new ServerSocket(9000);
        //  2.监听客户端的连接
        Socket socket = serverSocket.accept();  //  阻塞式监听，会一直等待客户端的连接

        //  3.获取输入流
        InputStream is = socket.getInputStream();

        //  4.文件输出
        FileOutputStream fos = new FileOutputStream(new File("receive.jpg"));
        byte[] buffer = new byte[1024];
        int len;
        while ((len=is.read(buffer))!=-1) {
            fos.write(buffer, 0, len);
        }

        //  通知客户端我接收完毕了
        OutputStream os = socket.getOutputStream();
        os.write("我接收完毕了,你可以断开了".getBytes());

        //  5.关闭资源
        fos.close();
        is.close();
        socket.close();
        serverSocket.close();
    }
}
